{"id":319,"date":"2016-09-12T14:57:14","date_gmt":"2016-09-12T06:57:14","guid":{"rendered":"http:\/\/blog.droidking.com\/?p=319"},"modified":"2016-09-12T14:58:32","modified_gmt":"2016-09-12T06:58:32","slug":"mysql%e6%95%b0%e6%8d%ae%e5%ba%93%e6%95%85%e9%9a%9c%e4%bf%ae%e5%a4%8d%e4%b8%80%e4%be%8b","status":"publish","type":"post","link":"http:\/\/droidking.com\/?p=319","title":{"rendered":"mysql\u6570\u636e\u5e93\u6545\u969c\u4fee\u590d\u4e00\u4f8b"},"content":{"rendered":"<p>\u67d0\u7ebf\u4e0a\u670d\u52a1\u5668\u7684mysql\u7a81\u7136\u5d29\u6e83\u540e\uff0c\u91cd\u542f\u4e00\u76f4\u5931\u8d25\u3002\u67e5\u770bmysql\u7684error.log\u53d1\u73b0\u5982\u4e0b\u9519\u8bef\u4fe1\u606f\uff1a<\/p>\n<pre>InnoDB: Serious error! InnoDB is trying to free page 716\r\nInnoDB: though it is already marked as free in the tablespace!\r\nInnoDB: The tablespace free space info is corrupt.\r\nInnoDB: You may need to dump your InnoDB tables &amp; recreate the whole\r\nInnoDB: database!<\/pre>\n<p>\u5c1d\u8bd5\u4e86\u5404\u79cd\u4fee\u590d\u65b9\u6cd5\u5747\u544a\u5931\u8d25\uff0c\u770b\u6765\u53ea\u80fd\u91cd\u5efa\u6570\u636e\u5e93\u4e86\u3002<\/p>\n<p>\u9996\u5148\u89e3\u51b3\u65e0\u6cd5\u542f\u52a8\u7684\u95ee\u9898\uff08\u53c2\u89c1<a href=\"http:\/\/dev.mysql.com\/doc\/refman\/5.5\/en\/forcing-innodb-recovery.html\">http:\/\/dev.mysql.com\/doc\/refman\/5.5\/en\/forcing-innodb-recovery.html<\/a>\u7684\u8bf4\u660e\uff09\uff1a<\/p>\n<p>\u5148\u6dfb\u52a0\u5982\u4e0b\u8bbe\u7f6e\u5230my.cnf\uff1a<\/p>\n<pre class=\"programlisting\"># vi \/etc\/mysql\/my.cnf\r\n\r\n[mysqld]\r\ninnodb_force_recovery = 1<\/pre>\n<p>\u4fdd\u5b58my.cnf\u9000\u51favi\u540e\u91cd\u542fmysql\uff1a<\/p>\n<pre># service mysql start<\/pre>\n<p>\u4f46\u91cd\u542f\u4f9d\u7136\u5931\u8d25\u3002<\/p>\n<p>\u6309\u4e0a\u8ff0\u5b98\u65b9\u6587\u6863\u63d0\u793a\uff0c\u5c1d\u8bd5\u63d0\u9ad8recovery\u7ea7\u522b\u52302\uff1a<\/p>\n<pre class=\"programlisting\">[mysqld]\r\ninnodb_force_recovery = 2<\/pre>\n<p>\u8fd9\u6b21\u91cd\u542f\u6210\u529f\u4e86\uff0c\u5e76\u4e14\u53ef\u4ee5\u6b63\u5e38\u67e5\u8be2\uff0c\u4f46\u6b64\u65f6mysql\u5904\u4e8e\u53ea\u8bfb\u72b6\u6001\uff0c\u65e0\u6cd5\u505aupdate\u3001delete\u7b49\u5199\u64cd\u4f5c\u3002\u4e0b\u9762\u5f00\u59cb\u5c1d\u8bd5\u5148\u5907\u4efd\u518d\u6062\u590d\u5168\u90e8\u6570\u636e\u5e93\u3002<\/p>\n<p>1\u3001\u5907\u4efd\u5168\u90e8\u6570\u636e\u5e93<\/p>\n<pre>mysqldump -uroot -p -AER &gt; \/root\/recovery_dump.sql<\/pre>\n<p>2\u3001\u5220\u9664\u5168\u90e8\u6570\u636e\u5e93<\/p>\n<pre>mysql&gt; SET FOREIGN_KEY_CHECKS=0;\r\nmysql&gt; DROP DATABASE db1;\r\nmysql&gt; DROP DATABASE db2;\r\n...<\/pre>\n<p>\u5982\u679c\u6570\u636e\u5e93\u592a\u591a\uff0c\u53ef\u4f7f\u7528\u5982\u4e0b\u547d\u4ee4\u6279\u91cf\u5220\u9664\u3002<span style=\"color: #000000;\">\u6ce8\u610f\uff1a&lt;password&gt;\u5e94\u8be5\u66ff\u6362\u4e3a\u771f\u5b9e\u5bc6\u7801\u3002<\/span><\/p>\n<pre># mysql -uroot -p&lt;password&gt;\u00a0 -e \"show databases\" | grep -v Database | grep -v mysql| grep -v information_schema| grep -v test | grep -v OLD |gawk '{print \"drop database \" $1 \";select sleep(0.1);\"}' | mysql -uroot -p&lt;password&gt;<\/pre>\n<p>3\u3001\u505c\u6b62mysql\u3002\u6ce8\u610f\u5e94\u8be5\u7981\u7528innodb_fast_shutdown\uff0c\u786e\u4fddmysql\u5b8c\u5168\u505c\u6b62\u3002<\/p>\n<pre># mysql -uroot -p -e \"SET GLOBAL innodb_fast_shutdown = 0\"\r\n# service mysql stop<\/pre>\n<p><!--more-->4\u3001\u5b8c\u5168\u5220\u9664mysql\u6570\u636e\u548c\u65e5\u5fd7<\/p>\n<pre>rm \/var\/lib\/mysql\/ibdata*\r\nrm \/var\/lib\/mysql\/ib_log*<\/pre>\n<p>5\u3001\u91cd\u542fmysql\u5e76\u5bfc\u5165\u5907\u4efd\u7684\u6570\u636e\uff1a<\/p>\n<pre># service mysql start\r\n# mysql -uroot -p &lt; \/root\/recovery_dump.sql<\/pre>\n<p>\u81f3\u6b64mysql\u7ec8\u4e8e\u542f\u52a8\u6b63\u5e38\u4e86\uff0c\u6570\u636e\u4e5f\u5b8c\u5168\u6062\u590d\u6210\u529f\u3002<\/p>\n<p class=\"bawpvc-ajax-counter\" data-id=\"319\">\u9605\u8bfb\uff1a87<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u67d0\u7ebf\u4e0a\u670d\u52a1\u5668\u7684mysql\u7a81\u7136\u5d29\u6e83\u540e\uff0c\u91cd\u542f\u4e00\u76f4\u5931\u8d25\u3002\u67e5\u770bmysql\u7684error.log\u53d1\u73b0\u5982\u4e0b\u9519\u8bef\u4fe1\u606f\uff1a Inn &hellip; <a href=\"http:\/\/droidking.com\/?p=319\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">mysql\u6570\u636e\u5e93\u6545\u969c\u4fee\u590d\u4e00\u4f8b<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-319","post","type-post","status-publish","format-standard","hentry","category-5"],"_links":{"self":[{"href":"http:\/\/droidking.com\/index.php?rest_route=\/wp\/v2\/posts\/319","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/droidking.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/droidking.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/droidking.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/droidking.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=319"}],"version-history":[{"count":5,"href":"http:\/\/droidking.com\/index.php?rest_route=\/wp\/v2\/posts\/319\/revisions"}],"predecessor-version":[{"id":324,"href":"http:\/\/droidking.com\/index.php?rest_route=\/wp\/v2\/posts\/319\/revisions\/324"}],"wp:attachment":[{"href":"http:\/\/droidking.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=319"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/droidking.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=319"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/droidking.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}